baber/WOPTO huggingface dataset:
Patent DE-2607015-A1 (DE)
Title: Rotating rectifier for machines exciter - has flexible board with contact regions pressed by spring against rectifiers
Inventor: KOISCHWITZ MICHAEL
IPC: H02K11/042
Filed: 1976-02-19
Abstract: The rotating rectifier, for a machine's exciter, has a contact board (8) with two contact regions (9, 10) joined by a region (11) where the board can bend. Insulating spacers (6) are located between the support ring (1) and the inner heat sink (2). A thrust spring (13) rests against the support ring and presses the board's one contact region (9) against the correspondingly poled contact of the rectifier element (3). The second contact region is fixed directly to the support ring.
Patent DE-2608313-A1 (DE)
Title: Ergometer for close control of workload - is pedal-driven electric generator with controlled armature current
Inventor: MOHR ADOLF DR ING
IPC: A63B21/005
Filed: 1976-02-28
Abstract: The driven element (34) is deflected against a restoring force, and by its deflection affects electrical regulators which establish the prescribed workload. The driven element (34) is a permanent-magnet generator, whose armature current is the controlled variable. The permanent magnets tend to follow the armature rotation, and are restrained by their own weight (34) and the force of a spiral spring (32). The movement of the driven element (34) moves a potentiometer slider (30) via friction wheels (26, 28). There are two alternative control circuits, one providing a constant workload, the other a workload proportional to the speed. In both, the armature current comes through a transistor whose resistance is controlled by a comparator (difference amplifier).
Patent DE-2609787-A1 (DE)
Title: Groove rolling device for crankshafts - has roller turnable freely in cage and in contact with outer groove of support roller
Inventor: KUNZE BERNHARD
IPC: B24B39/04
Filed: 1976-03-10
Abstract: The groove rolling device especially for crankshafts, has a roller supported so that it can turn freely in a cage. The roller can be applied at an angle via an outer profile groove of a support roller mounted in a housing of the device. The roller (12, 13, 22) is continuously in contact at its outer peripheral face with the outer profile groove (4, 5) of the support roller (3) through the force of a spring (9) which engages at one end on the housing (2), and at the other end on the cage (6) which pivots on the housing (2). With one of its side faces it is in contact with the casing face of a needle roller (10, 11, 25) held in the cage. More specifically, a replaceable slide piece (15) is arranged in the cage (6) which holds the roller (12, 13).
Patent DE-2610168-A1 (DE)
Title: Self starting multipole sync. or stepping motor - has anisotropic rotor with specified pole pair number
Inventor: SPIESBERGER AUGUST DIPL ING
IPC: H02K21/16
Filed: 1976-03-11
Abstract: The rotor, for a multi-pole synchronous motor or stepping motor for two or more phases and with one or more stators, has the rotor magnets (2) made of anisotropic material whose preferred direction is radial perpendicular to the rotor shaft. Each half of the rotor circumference is thereby either a south or a north pole and the diametrically opposite poles have opposite polarity. With a single stator motor the number of stator pole pairs is equal to the number of rotor pole pairs multiplied by the number of phases. With a two-stator motor the stator pole pair number is equal to twice the rotor pole pair number minus one.
Patent DE-2621375-A1 (DE)
Title: Installation duct of insulating plastic - has dimensions adapted to those of switches, socket outlets etc., with attachment for fastening partition
Inventor: MITTLER LEO
IPC: H02G3/12
Filed: 1976-05-14
Abstract: The duct serves for laying cables and wires, and for holding devices such as switches, socket-outlets, junction boxes etc. It has means for holding the above devices in the duct provided with a cover interrupted by covers of these devices. Means are also provided for fastening of at least one partition. Clear inner width and depth of the cuct correspond to corresponding dimensions of a standard buried socket-outlet, so that installation devices (1) can be fastened on the duct (4) inner walls by their spreadable grips (2, 3). The duct outer is smaller than supporting elements (6) of the devices and their covers (7).
Patent DE-2628672-A1 (DE)
Title: Printing cylinder drive with reduced gears and cylinder play - has drive shaft axis and cylinder axis lying in common plane
Inventor: BYRT GRAHAM ARCHIE BRUCE
IPC: B41F13/012
Filed: 1976-06-25
Abstract: The drive for a printing cylinder for double-sided printing of a continuous web if paper to reduces the play between the gears and the cylinder. The drive shaft (17) turns about an axis lying at right angle to that of the cylinder. An intermediate shaft (28) is mounted in a carrier (18) which swivels about the axis of the drive shaft. The intermediate shaft has at least one gear wheel (29) which is selectively engaged at different positions with a bevel gear (16) on the cylinder in order to reverse the direction of drive.
Patent DE-2628673-A1 (DE)
Title: Traffic indicator posts - extruded from hollow plastics section covered directly by extruded layer subdivided into repeated colour pattern
Inventor: NECKERMANN KLAUS
IPC: B29C48/09
Filed: 1976-06-25
Abstract: Traffic indicator posts are composed of a tube extruded from a first plastics material and covered directly with a layer of a second plastics material. Pref. the second layer which is of low impact polypropylene is extruded in sections having alternating colour pattern. The posts are 30 mm thick, have 500 mm long orange-black or white-black alternating colour sections, and are used for indicating where the edge of the road is, in e.g. snow. Posts are produced in a single operative step.
Patent DE-2639541-A1 (DE)
Title: Circulation pump for heating and water supply - has non-return valve for water to motor for lubricating purposes
Inventor: JENSEN POUL DUE
IPC: F04D13/06
Filed: 1976-09-02
Abstract: The circulation pump used esp. for heating and water supply systems, has housing with partition wall between pump rotor and motor chamber. This partition wall has a slit for filling the motor chamber with water. A nonreturn valve prevents excessive filling of motor chamber. The pump system uses valve for rapid water access and ensuring. The slit (19) is concentric to the centre line. It has on its motor end valves seat a flexible sealing ring (20) acting as closure element of the nonreturn valve. The seal annular gap is wider on the motor end than on the pump end. This seal hence ensures water flow from chamber (4) to motor chamber (5) but not in opposite directions.
Patent DE-2641149-A1 (DE)
Inventor: MURAKAMI FUMIKAZU
IPC: G04C21/02
Filed: 1976-09-13
Abstract: 1525818 Alarm generating apparatus DAINI SEIKOSHA KK 20 Sept 1976 [22 Sept 1975] 38891/76 Heading G5J Alarm generating apparatus comprises an electro-acoustic transducer having a resonant frequency in the audible range, and driving circuitry, including time-setting means, producing a driving signal for the transducer during a predetermined time-period whose frequency varies unidirectionally within a range including the resonant frequency so that, in operation, the frequency and the volume of the audible sound produced by the transducer change with time. The frequency of the driving signal may vary continuously and linearly or stepwise. The apparatus may be incorporated into a watch or a selective calling system. The time-setting means may be a one-shot multivibrator, and reset means may be provided for terminating the audible sound produced by the transducer.
Patent DE-2642584-A1 (DE)
Title: Hydrodynamic bearing for machine tool spindle - utilises oil pressure to reduce spindle deflection and damp vibration
Inventor: STEINBERGER JOSEF
IPC: F16C21/00
Filed: 1976-09-22
Abstract: The spindle of a machine tool is supported by roller bearings. The combined effect of the overhung weight of the chuck and the force exerted by the cutting tool causes the spindle to deflect and vibrate. To counteract this deflection, a hydrodynamic bearing (7) is installed midway between the roller bearings. Oil is supplied and a hydrodynamic pressure is created by the rotation of the spindle. As the spindle deflects the bearing, clearance is reduced on the side opposite to the load. This reduced clearance generates a higher dynamic pressure which reduces the deflection and also damps out any vibration.
Patent DE-2657976-A1 (DE)
Title: Control of tape rewind in video tape recorder - uses signal derived from tape applied to disconnecting relay after delay in case of interruption
Inventor: GUMBMANN WILHELM
IPC: G11B27/22
Filed: 1976-12-21
Abstract: In the magnetic tape recorder sound and/or video signals are recorded on the tape, while a reading head synchronises the tape speed during forward run. When the tape end is reached, the head disconnects the forward drive and starts rewind. The recorder has a circuit which transmits, during an interruption, the signal read out by the head to a monostable multivibrator and to a disconnecting relay only when the interruption lasted longer than the multivibrator time constant.
Patent DE-2659038-A1 (DE)
Title: Metal enclosed gas filled switchgear - has non-uniform electric field distribution and specified gas pressure
Inventor: BRUECKNER PAUL PROF DR ING DR
IPC: H02B13/055
Filed: 1976-12-27
Abstract: The shape of the earthed jackets and/or the arrangement of conductors in them is such, that the electric field is very non-uniformly distributed. The insulating gas is sulphur hexafluoride with addition of air or of nitrogen, with the air or nitrogen content being 5-20 vol. %. The insulating gas pressure in normal conditions is 1 to 1.5 bar (absolute). The casing of the switching system consists of several rectangular box units (1, 2, 3, 4). The first box unit contains a terminal system (6). It is followed by a switching system (7) and voltage conversion and current conversion units.
Patent DE-2701628-A1 (DE)
Title: Machine assembling mosaic from tiles - has roller applying adhesive so that rear faces of tiles are bonded together with paper
Inventor: SUGIURA KAMAJIRO
IPC: B28B11/02
Filed: 1977-01-17
Abstract: The tiles (T) which form the mosaic are assembled to form a square on the assembly plate (17) mounted on the carrier plate (19). Stacks of paper discs are stored in cylindrical housings (1). A suction device (E) with multiple suction heads is placed over the paper store and lifts the top disc off each stack. The suction device (E) is then moved sideways over the roller (D) which applies adhesive to the paper discs. The device (E) then presses the discs onto the mosaic assembly (T) so that each disc overlaps the corners of four adjacent tiles. A second suction device (F) then moves over and down onto the tiles and lifts the assembly onto the conveyor (C).
Patent DE-2705133-A1 (DE)
Title: Combined lamp and liq. vaporising device - has double shade or container to hold liquid above or near bulb
Inventor: KEIDERLING GEORG
IPC: A61H33/06
Filed: 1977-02-08
Abstract: A lamp can be used with a water vessel so as to disperse a medical substance into e.g. living room, or be used as a novelty in a garden, and combined with a bird bath etc., as in the main patent. A double lamp shade can be fitted so that a film of liquid can be maintained between. This is vapourised so that the substance is dispersed in the air. The lamp can alternatively incorporate a system for supporting a liquid container above or near the lamp bulb. It can still be used for reading etc. in a conventional manner.
Patent DE-2710942-A1 (DE)
Title: Fixing a rail, esp. a wallpaper end rail - using a strip with contact adhesive and durable adhesive
Inventor: BENZ-KUNZ JAKOB
IPC: C09J7/20
Filed: 1977-03-12
Abstract: A strip or rail, esp. a wallpaper end rail, is fixed to an underlying surface by means of adhesives. The rear face of the rail is coated with a contact adhesive in which there are, spaced out from each other, openings. In each of these a spot of an adhesive which bonds permanently after hardening is applied in direct contact with the material of the rail. The rail is then pressed against the surface to be covered so that an immediate adhesion is effected by the contact adhesive and the permanent bond is allowed to set. Combines the simplicity of working with contact adhesive, with the permanent fastening obtd. by the durable adhesive. The position of the rail can be adjusted but after a few hours drying time the rail is fixed.
Patent DE-2711397-A1 (DE)
Title: Roller shutter winding mechanism with reduction gear - has pulley screwed on to spindle mounting attachment force locked to drive shaft
Inventor: HENKENJOHANN JOHANN
IPC: E06B9/171
Filed: 1977-03-16
Abstract: The roller shutter winding mechanism incorporates a divided winding spindle fitted with a pulley connected to one end. The other end of the spindle is fitted with a reducing gear. The pulley (11) is screwed onto an attachment (26) on the bearing (22) and it has a force locking connection with a drive shaft (13). The attachment can be fitted on the end face of a spindle component, and incorporate a stepped hole (39) for a shaft stub with lugs for mounting on an opening in the wall. A planetary gear system may serve as reducation gear (12).
Patent DE-2717783-A1 (DE)
Title: Electric motor supply switch-over appts. - has contactors and start relay interconnected to form two separate reversible ring scalers
Inventor: SKATSCHKOV IVAN IVANOVITSCH
IPC: H02J9/06
Filed: 1977-04-21
Abstract: Appts. switching over the supply sources of an electric motor in an electric power station selects the optimum time during running down of the motor for switching the motor over to a reserve or standby supply source. The electric motor is separated from its supply source via power contacts and each supply source has a unit for controlling the phase at the supply source. To switch over the start relay and the associated contactors in the circuit connecting the electric motor to the supply source group, so that at the instant of failure or breakdown of the supply source, rapid automatic changeover of the motor onto the supply source in the group that is intact always takes place, the contactors and the start relay are connected together to form two separate reversible ring-scalers (counters) i.e. the start relay ring-scaler and the contactor ring scaler.
Patent DE-2718534-A1 (DE)
Title: Simulation of reverberation in audio signals - using channel signal delay system in combination with channel interconnection network
Inventor: DEFREITAS RICHARD E
IPC: H04R5/00
Filed: 1977-04-26
Abstract: The audio system achieves a concert hall reverberation effect from a stereo input signal. From two stereo input signals the audio system produces quadraphonic signals suitable for application to four speakers in the pattern of a quadraphonic sound reproduction system. the system applies the stereo input signals to a front pair of speakers without alteration. Reverberation is added o the stereo input signals for application to the rear speakers which realistically reproduces the impression of concert hall acoustics in the sound reaching the listener from all four speakers. The reverberation is provided by a channel signal delay scheme in combination with a channel interconnection network which achieves long reverberation times with a high echo density.
Patent DE-2725054-A1 (DE)
Title: Screw drive running on ball bearings - has inner bearing rib of plastics with portion bearing against inner race
Inventor: GAERTNER ROBERT DR ING
IPC: F16H25/22
Filed: 1977-06-03
Abstract: The screw drive comprises a screwed spindle enclosed by a frame, with a ball bearing inclined to the spindle between them and of larger dia. than the spindle and eccentric to it. The outer race of the bearing is secured to the frame and the inner one has an annular rib engaging in the spindle thread. The rib (5) is partly or wholly of plastic or a plastic mixture, and has one or more portions protruding outwards (18), by which it bears against one end face (19) of the inner face (3) of the bearing. The rib can be a homogeneous plastic mixture of nylon and smallest teflon particles. A modified plastic can be used, of high-load capacity and low fineness ratio.
Patent DE-2729612-A1 (DE)
Title: Inert flexible textile material - obtd. by partial carbonisation of acrylonitrile!-cellulose fibre mixts.
Inventor: ROMANIEC CHARLES
IPC: D01F9/22
Filed: 1977-06-30
Abstract: An inert flexible textile material, e.g. a woven fabric, is made from a scoured blend of acrylonitrile polymer and natural or regenerated cellulose fibres by (1) impregnating with an aq. soln. contg. either (a) an NH4 halide and Cu salt of a lower alkane acd, or nbe an NH4 phosphate and alkali metal bichromate, (2) heating in a stream of oxygen-contg. gas at 150-250 degrees C pref. for 10-120 mins., and (3) heating in inert gas atmos. to a surface temp. of 275-325 degrees C for sufficient time to render the surface inert. Used for mfr. of protective clothing and reinforcement of synthetic resins for mfr. of pipes and vessels for transport and storage of corrosive fluids. The material is chemically inert, non-flammable, with good thermal and electrical insulating properties.
Patent DE-2731227-A1 (DE)
Title: Electroslag remelting plant for mfg. steel ingots - with easy renewal of consumable electrode, and low capital and running costs
Inventor: HOLZGRUBER WOLFGANG DIPL ING D
IPC: B22D23/10
Filed: 1977-07-11
Abstract: Plant for mfg. ingots of high m.pt. metals, esp. steel ingots by electroslag melting uses >=1 consumable electrode and a transformer. On a stage is a stationary mould with its bottom end closed by a baseplate mounted on a trolley located on the end of four precision roller chains driving the trolley vertically between four guide pillars (a) in a pit. Above the stage is a main pillar (b) fitted with a main trolley driven vertically to lower an electrode into the mould on trolley is a swivel arm moving the used electrode out of the trolley, An auxiliary pillar (c) is fitted with a third trolley on which a swivel arm carries a new electrode which can be swung onto trolley. Two vertical, water-cooled Cu tubes carry sliding contacts feeding electric power to the baseplate and to trolley. Trolley is also fitted with adjusting devices moving the electrode in two horizontal directions (x, y) at 90 degrees to each other. The plant has low initial- and running-costs, and uses a short mould, e.g. 700 mm high, sol long ingots can be made.
Patent DE-2731548-A1 (DE)
Title: Radioactive waste solidified and embedded in metal matrix - solidification carried out in hot cell but embedding in disposal coffin
Inventor: BAATZ HENNING DR
IPC: G21F9/00
Filed: 1977-07-13
Abstract: A method of handling radioactive waste in processing it for engineered storage consists of converting it into the form of vitrified or calcined solid blocks or lumps. These are then embedded in a metal matrix for transference to the engineered storage. A hot cell is used onl for the prodn. of the solid vitrified or calcined blocks, these are then discharged from the hot cell into a shielded storage vessel, temporarily connected to the cell through a lock. In the shielded storage vessel, designed to be virtually indestructible to modern standards, the lumps are then embedded in molten metal, which cools there to form the matrix. The only equipment required inside the hot cell is that for processing the waste into the form of solid blocks. The stringent engineering design requirements imposed upon the shielded storage vesseles make them eminently suitable as casting vessels in which the molten metal can be poured to form the solid matrix.
Patent DE-2738139-A1 (DE)
Title: Thermal sepn. of liquids with different volatilities - using pressure vessel column with fractionating column, heater coil and prod. cooler-feed preheater all inside the one vessel
Inventor: MARKFORT DIETER DR ING
IPC: B01D1/02
Filed: 1977-08-24
Abstract: Liq. mixts., the components of which have different volatilities, are sepd. in a column which contains a fractionating column and an internal heat exchanger to cool the prod. and heat the feed. It also has a heating coil. Heat is recovered from the heavy component and transferred the incoming feed. Vapour condensed by the fractionating column is returned as reflux and that removed by the condenser leaves as distillate. The shoel system is contained within a single pressure vessel shell. The condenser and fractionating column a mirror image of the recuperator at the base, and so the column is of a symmetrical construction. Used for thermal sepn. of liq. mixts. esp. where this needs to be done under pressure. Conventional distn. systems have the double problem of (a) heat losses and (b) the need for several separately tested vessels, when separate condensers and preheaters are used. By combining all in a single vessel, the mfg. cost is reduced as are operating costs.
Patent DE-2738338-A1 (DE)
Title: Voltage indicator monitoring high or low voltage levels - derives power from measured voltage and has logic coupled display supplied via threshold switch
Inventor: SCHMIDT WOLFGANG
IPC: A61B5/12
Filed: 1977-08-25
Abstract: A voltage indicator for monitoring a measurement voltage for high or low levels using a light display is designed for very simple construction, low current consumption, and to derive its supply power from the measurement current itself. The light display is driven via an AND gate, one of whose inputs is driven by the measurement voltage via a threshold switch and the other by the measurement voltage pulse modulated. The indicator is a portable unit using a logic coupled display.
Patent DE-2738796-A1 (DE)
Title: Prefabricated floor component - is joined to others to form supporting grid with flanges accommodating flagstones
Inventor: MALAVASI ALBERTO
IPC: E04F21/22
Filed: 1977-08-29
Abstract: The standard-size prefabricated component is for the construction of floors and walls in conjunction with flagstones etc. It is shaped (1) so as to form with others a modular supporting grille, with flanges (3) at the sides to take the flagstone edges, these protruding from the bottom and being of length less than the height of the component. The top of each flange is at a distance from that of the component les than or at the most equal to the flagstone thickness. At the component sides clamping devices are provided, securing it to the others to form the grille.
Patent DE-2750590-A1 (DE)
Title: Porous filter paper for cigarette filters - consisting of criss=crossed vegetable fibres bonded by a synthetic material
Inventor: MUELLER HERMANN
IPC: D21F11/14
Filed: 1977-11-11
Abstract: A porous filter paper based on unbeaten or slightly beaten vegetable fibres has at least some of the crossing points of the fibres a synthetic reinforcement which bonds the fibres. The filter paper is intended for cigarette filters. It combines high porosity and homogeneity with good mechanical strength. The synthetic material pref. has a softening point of 80-150 degrees C and forms 15-50 wt. % of the filter paper. Claimed synthetic materials are polyethylene, polypropylene and vinyl chloride-vinyl acetate copolymers.
Patent DE-2751945-A1 (DE)
Title: Strip for underground pipe protection - made of mixt. contg. atactic polypropylene, loose filling, fibrous strengthener and rubber soln.
Inventor: TROJNA MILAN DIPL ING
IPC: F16L57/00
Filed: 1977-11-21
Abstract: Strip for mechanically protecting an insulated, underground pipe conduit, e.g. against falling stones, consists of a layer, >=1 mm thick, made of a mixt. contg. (a) 10-99.8% atactic polypropylene, dehydrated by heating to 100-70 degrees C and then cooled by 1-70 degrees C, (b) 0.1-40% loose fillings, reinforced with fibrous material stronger than the mixt. itself, and 0.1-50% rubber soln. in an organic solvent, in wt. ratio 1-50 to 50-99. Mechanical damage in a rocky soil can be reduced without soil pre-treatment and/or without the use of a specific loose material. A cheap, light strip can be obtd. from readily available waste materials.